html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    background-color: #000000;

    background-image:
        repeating-radial-gradient(
            circle at center,
            rgba(220, 0, 0, 0.25) 0px,
            rgba(220, 0, 0, 0.25) 2px,
            transparent 2px,
            transparent 70px
        ),
        repeating-conic-gradient(
            from 0deg,
            rgba(0, 80, 255, 0.15) 0deg,
            rgba(0, 80, 255, 0.15) 2deg,
            transparent 2deg,
            transparent 18deg
        );

    background-attachment: fixed;
    background-blend-mode: screen;
}

@keyframes pulseWeb {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.15); }
}

/* Seite generell */
* { box-sizing: border-box; }

body{
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center; /* horizontal */
  align-items: center;     /* vertikal */
  padding: 20px;
  box-sizing: border-box;
}

/* 2 Buttons Layout */
.button-section{
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 260px)); /* feste, saubere Buttonbreite */
  gap: 20px;

  justify-content: center; /* gesamte Grid-Spalte(n) im Container zentrieren */
  justify-items: center;   /* Inhalte in den Zellen zentrieren */
}

.image-button img{
  width: 100%;
  aspect-ratio: 1 / 1;       /* schön quadratisch */
  object-fit: cover;
  border-radius: 15px;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
}

.image-button img:hover{
  transform: scale(1.03);
  box-shadow: 0 10px 20px rgba(0,0,0,.2);
}

/* Handy Hochformat: untereinander */
@media (max-width: 600px) and (orientation: portrait){
  .button-section{
    grid-template-columns: 1fr;
    width: min(360px, 100%);
  }
}

/* Handy Querformat: wie Desktop (2 nebeneinander) */
@media (max-width: 900px) and (orientation: landscape){
  .button-section{
    grid-template-columns: repeat(2, 1fr);
    width: min(600px, 100%);
  }
}